Michelle is a lot smarter than Barack, and she would have the sense to see where he failed, such as not making an effective effort to rescue families from foreclosure.
That inept performance led to the current shortfall of 3 million homes and many families forced to rent, having lost their principal store of wealth, the family home. Due to the scarcity of housing compounded by high mortgage rates and the pandemic, house prices are out of reach of the disposessed families.
This is a whole discussion that has been largely ignored, except for proposed giving of $25k to first-time buyers, a bad solution from Kamala.